#include<stdio.h>
#include<ctype.h>
int main() {
	char a[100];
	int i=0;
	fflush(stdin);
	scanf("%c",&a[i]);
	while(a[i]!='\n') {
		switch(isalpha(a[i])) {
			case 0: {
				printf("%c Khong phai la` mot ky tu\n",a[i]);
				++i;
				scanf("%c",&a[i]);
				break;
			}
			default: {
				printf("%c la` mot ky tu\n",a[i]);
				++i;
				scanf("%c",&a[i]);
			}
		}
	}
	
	return 0;
}